Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
128921447Composite: proven not-prime with PRP test
TF
No factors below 277
TF target 277
P-1
B1 = 574000
B2 = 15946000
PRP
StatusDateUserResidueShiftTypeBase
Verified2024-08-16Luke Durant675B64D5448FC276013
History
DateUserTypeResult
2024-08-17Oliver KruseCERT
PRP Certification
CERT proof power = 9
Proof certified good
2024-08-16Luke DurantC-PRP
675B64D5448FC276
PRP proof power = 9
PRP: Verified
Proof certified good
2024-08-03arnaudNF-PM1
B1=574000, B2=15946000, E=6
2023-02-10TravisJankNF
no factor from 2^76 to 2^77
2023-02-10TravisJankNF
no factor from 2^75 to 2^76
2022-12-27SRBaseNF
no factor from 2^74 to 2^75
2019-05-21Niels_Mache_NextcloudNF
no factor from 2^73 to 2^74
2019-05-21Niels_Mache_NextcloudNF
no factor from 2^72 to 2^73
2016-01-06CSLatDDNF
no factor from 2^71 to 2^72
2015-12-30SMoffatNF
no factor from 2^70 to 2^71
2015-12-25SMoffatNF
no factor from 2^69 to 2^70
2015-10-23LookASNF
no factor from 2^68 to 2^69
2015-09-11el groccoNF
no factor from 2^67 to 2^68
2015-01-11nikoszNF
no factor from 2^66 to 2^67
2012-10-02sannerud.comNF
no factor from 2^65 to 2^66
2010-11-09Torchwood InstituteNF
no factor from 2^64 to 2^65
2010-05-30Torchwood InstituteNF
no factor from 2^63 to 2^64